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authorIoana Ciornei <ioana.ciornei@nxp.com>2018-11-09 15:26:46 +0000
committerDavid S. Miller <davem@davemloft.net>2018-11-09 20:08:58 -0800
commit5500598abbfb5b46201b9768bd9ea873a5eeaece (patch)
tree83d8fa6c45d48ae8307a1a0aa4fad3365593a89a /drivers/net/ethernet/freescale
parentd7f5a9d89a55af68908a013811404971f88d661e (diff)
dpaa2-ptp: defer probe when portal allocation failed
The fsl_mc_portal_allocate can fail when the requested MC portals are not yet probed by the fsl_mc_allocator. In this situation, the driver should defer the probe. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale')
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
index 84b942b1eccc..9b150db3b510 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ptp.c
@@ -140,7 +140,10 @@ static int dpaa2_ptp_probe(struct fsl_mc_device *mc_dev)
err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io);
if (err) {
- dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
+ if (err == -ENXIO)
+ err = -EPROBE_DEFER;
+ else
+ dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
goto err_exit;
}